Molfile
Inchi
Smiles
Synonyms:
-
helium
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atomic helium
-
helium, usp
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A noble gas with the atomic symbol He, atomic number 2, and atomic weight 4.003. It is a colorless, odorless, tasteless gas that is not combustible and does not support combustion. It was first detected in the sun and is now obtained from natural gas. Medically it is used as a diluent for other gases, being especially useful with oxygen in the treatment of certain cases of respiratory obstruction, and as a vehicle for general anesthetics.
- Molecular weight: 4.00
- Formula: He
- CLOGP: 0.28
- LIPINSKI: None
- HAC: 0
- HDO: 0
- TPSA:
- ALOGS:
- ROTB: 0
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